枸橼酸作用下纳米铁氧化物晶体的形成研究  

Formation of nano iron oxide crystals under the reaction of citric acids

作　　者：孙百虎[1] 

机构地区：[1]石家庄职业技术学院化学工程系,河北石家庄050081

出　　处：《石家庄职业技术学院学报》2014年第2期13-16,共4页Journal of Shijiazhuang College of Applied Technology

摘　　要：以FeSO4为原料,NaOH为沉淀剂,加入添加剂构橼酸,用空气氧化法合成纳米铁氧化物,在不同pH值下考查添加枸橼酸对纳米铁氧化物形成的影响.试验结果表明,当pH=8～9时,少量构橼酸有利于铁氧化物品体的生长;随着枸橼酸浓度的增大,铁氧化物结晶粒子半径逐渐减小,最终铁氧化物品体消失.This study takes FeSO4 as the raw material, NaOH as the precipitant, added with additive citric acids,applied by the synthesis of nano iron oxide by air oxidation, centering on the formation of nano iron oxides and the effects in different pH tests. Results show that given pH= 8 ~ 9, tiny citrate favors crystallization of iron oxides, gradually increased concentration of citric acids reduces the radius of iron oxide crystalline particles ,and iron oxide crystals disappear.

关 键 词：枸橼酸 纳米铁氧化物 晶体 形成 

分 类 号：TB383[一般工业技术—材料科学与工程]